ci: add push event trigger and refine deployment conditions in preview.yml for improved deployment handling

Author: zardoy

.github/workflows/preview.yml

@@ -3,17 +3,26 @@ env:
   VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
   VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
   ALIASES: ${{ vars.ALIASES }}
-  COMMENT_TRIGGER_OK: github.event_name == 'issue_comment' && contains(github.event.comment.body, '/deploy') && github.event.issue.pull_request != null
-  PULL_TRIGGER_OK: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
 on:
   issue_comment:
     types: [created]
   pull_request:
+  push:
 jobs:
   deploy:
     runs-on: ubuntu-latest
-    # todo skip already created deploys on that commit
-    if: vars.COMMENT_TRIGGER_OK || vars.PULL_TRIGGER_OK
+    if: >-
+      (
+        (
+          github.event_name == 'issue_comment' &&
+          contains(github.event.comment.body, '/deploy') &&
+          github.event.issue.pull_request != null
+        ) ||
+        (
+          github.event_name == 'pull_request' &&
+          contains(fromJSON(vars.AUTO_DEPLOY_PRS), github.event.pull_request.number)
+        )
+      )
     permissions:
       pull-requests: write
     steps: